#!/bin/bash
#
#  Copyright (c) 2017, The OpenThread Authors.
#  All rights reserved.
#
#  Redistribution and use in source and binary forms, with or without
#  modification, are permitted provided that the following conditions are met:
#  1. Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
#  2. Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#  3. Neither the name of the copyright holder nor the
#     names of its contributors may be used to endorse or promote products
#     derived from this software without specific prior written permission.
#
#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
#  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
#  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
#  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
#  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
#  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
#  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
#  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
#  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
#  POSSIBILITY OF SUCH DAMAGE.
#

OTBR_TOP_BUILDDIR="${BUILD_DIR}/otbr"
readonly OTBR_TOP_BUILDDIR

BORDER_ROUTING="${BORDER_ROUTING:-1}"
readonly BORDER_ROUTING

BACKBONE_ROUTER="${BACKBONE_ROUTER:-1}"
readonly BACKBONE_ROUTER

NAT64="${NAT64:-1}"
readonly NAT64

OTBR_MDNS="${OTBR_MDNS:-openthread}"
readonly OTBR_MDNS

OTBR_OPTIONS="${OTBR_OPTIONS-}"
readonly OTBR_OPTIONS

REFERENCE_DEVICE="${REFERENCE_DEVICE:-0}"
readonly REFERENCE_DEVICE

otbr_uninstall()
{
    if have systemctl; then
        sudo systemctl stop otbr-web || true
        sudo systemctl stop otbr-agent || true
        sudo systemctl disable otbr-web || true
        sudo systemctl disable otbr-agent || true
        ! sudo systemctl is-enabled otbr-web
        ! sudo systemctl is-enabled otbr-agent
    fi
    sudo killall otbr-web otbr-agent || true

    (
        if cd "${OTBR_TOP_BUILDDIR}"; then
            # shellcheck disable=SC2024
            sudo xargs rm <install_manifests.txt || true
        fi
    )
    if have systemctl; then
        sudo systemctl daemon-reload
    fi
}

otbr_install()
{
    local otbr_options=(
        "-DBUILD_TESTING=OFF"
        "-DCMAKE_INSTALL_PREFIX=/usr"
        "-DOTBR_DBUS=ON"
        "-DOTBR_INFRA_IF_NAME=${INFRA_IF_NAME}"
        "-DOTBR_MDNS=${OTBR_MDNS}"
        # Force re-evaluation of version strings
        "-DOTBR_VERSION="
        "-DOT_PACKAGE_VERSION="
    )

    # If the user provided custom options, append them
    if [[ -n ${OTBR_OPTIONS:-} ]]; then
        local user_options=()
        read -r -a user_options <<<"${OTBR_OPTIONS}"
        otbr_options+=("${user_options[@]}")
    fi

    if without BORDER_ROUTING; then
        otbr_options+=(
            "-DOTBR_BORDER_ROUTING=OFF"
        )
    fi

    if with WEB_GUI; then
        otbr_options+=("-DOTBR_WEB=ON")
    fi

    if with DHCPV6_PD_REF; then
        otbr_options+=(
            "-DOTBR_DHCP6_PD=ON"
        )
    fi

    if with REST_API; then
        otbr_options+=(
            "-DOTBR_REST=ON"
            "-DCPPHTTPLIB_REQUEST_URI_MAX_LENGTH=2048" # see cpp-httlplib issue #1288 and related.
        )
    fi

    if without BACKBONE_ROUTER; then
        otbr_options+=(
            "-DOTBR_BACKBONE_ROUTER=OFF"
        )
    fi

    if without NAT64; then
        otbr_options+=(
            "-DOTBR_NAT64=OFF"
        )
    fi

    if [[ ${REFERENCE_DEVICE} == "1" ]]; then
        otbr_options+=(
            "-DOTBR_NO_AUTO_ATTACH=1"
            "-DOT_REFERENCE_DEVICE=ON"
            "-DOT_DHCP6_CLIENT=ON"
            "-DOT_DHCP6_SERVER=ON"
            "-DOTBR_DUA_ROUTING=ON"
        )
    fi

    if with FIREWALL; then
        otbr_options+=(
            "-DOT_FIREWALL=ON"
        )
    else
        otbr_options+=(
            "-DOT_FIREWALL=OFF"
        )
    fi

    (./script/cmake-build "${otbr_options[@]}" \
        && cd "${OTBR_TOP_BUILDDIR}" \
        && ninja \
        && sudo ninja install)

    if have systemctl; then
        sudo systemctl reload dbus
        sudo systemctl daemon-reload
        without WEB_GUI || sudo systemctl enable otbr-web || true
        sudo systemctl enable otbr-agent || true
        sudo systemctl is-enabled otbr-agent || die 'Failed to enable otbr-agent!'
        without WEB_GUI || sudo systemctl is-enabled otbr-web || die 'Failed to enable otbr-web!'

        if [[ ${REFERENCE_DEVICE} == "1" ]]; then
            sudo systemctl enable testharness-discovery || true
            sudo systemctl is-enabled testharness-discovery || die 'Failed to enable otbr-agent!'
        fi
    else
        echo >&2 ' *** WARNING: systemctl not found. otbr cannot start on boot.'
    fi
}

otbr_update()
{
    otbr_install
}
